Locking attachment for smoke-pipes.



PATENTED AUG. 13, 1907.

G. L. SHEAD. LOCKING ATTACHMENT FOR SMOKE PIPES.

APPLIOATION FILED OUT-9.1905.

1H: NQRRIS PETERS cm, WASHINGTON, 04 c.

GIFFORD L. SHEAD, OF PLAINFIELD, WISCONSIN.

LOCKING ATTACHMENT FOR SMOKE-PIPES.

Specification of Letters Patent.

Patented Aug. 13, 1907.

Application filed October 9, 1905. Serial No. 281,893.

To all whom it may concern:

Be it known that I, GIFFORD L. SHEAD, a citizen of the United States,and a resident of Plainficld, in the county of Waushara and State ofWisconsin, have invented certain new and useful Improvements in LockingAttachments for Smoke Pipes; and I do hereby declare that the followingisa full, clear, and exact description thereof.

My invention consists in certain peculiarities of construction andcombination of parts hereinafter set forth with reference to theaccompanying drawings and subsequently claimed, its object being toprovide a simple and effective device for locking the end of a smokepipe in position after the latter has been connected to a chimney orfine, said device being capable of adjustment to the various thicknessesof chimneywalls to which it is attached.

In the drawings: Figure 1 represents a sectional view of a fragment of asmoke pipe and chimney with my device attached thereto; Fig. 2, across-section of the same, and Fig. 3, a perspective view of the lockingattachment detached.

Referring by letter to the drawings, a indicates a smoke pipe sectionwhich is fitted into an opening I) in a chimney wall 0, said chimney andpipe being illustrated to better show the application'of my devicethereto.

It frequently happens through various causes thata pipe when fitted to achimney will become loose and pull out, thus causing a defective draftand liability of serious consequences resulting from the escape of gas.My device is designed to obviate these difficulties and, as illustratedin Fig. 1, is inserted through the chimney hole b and clamped betweenthe faces of the chimney wall 0 previous to the insertion of the pipe a,the details of said device being fully set forth hereinafter.

wall, in opposition to a clamp E, which grips the outer face thereof.The clamp is formed with an arm F, which rests upon one face of thestrip A and is adjustably secured thereto, by means of a clip G, whichis riveted to said arm and laps over the edges of said strip.

For the purpose of holding the clamp E in its adjusted position, the armF thereof is provided at its end with a lug H which engages one of theseries of perforations D, in the strip and thus firmly clamps the rearportion of the device to the chimney between the inner and outer facesof the wall as shown in Fig. 1, of the drawings. Secured to the foot 13,at the rear end of the strip is a spring clip D which is bent over andforward approximately parallel with the strip A, its end being slightlyupturned to receive the edge of the smoke-pipe a, the latter beingprovided with a hole I which is adapted to receive the projection C ofthe aforesaid strip, when said pipe is in position, and thus securelylock the same against pulling out.

By the above description it will be seen that the locking attachment maybe adjusted and secured to any thickness of wall, and when the pipe isinserted between the spring clip and strip A, so that its hole I willengage the projection C, it will be impossible to disengage said pipe.

While I have shown and described the adjustable clamp E and clip in twoparts, it is obvious the same may be in one piece, and that in place ofa hole in the pipe, an indenture may be substituted without departingfrom the spirit of my invention.

Having thus described my invention what I claim as new and desire tosecure by Letters-Patent is A locking-attachment for smokepipescomprising a strip having an upturned projection at its outer end, :1depending; foot at the opposite end of the strip, a forwardly inclinedspring secured to the foot, said strips having a series of longitudinalperforations adjacent to the outer end thereof, a clamping memberprovided with an arm, a clip secured to the arm for engagement with theaforesaid strip, and a lug projecting from said arm for engagement withthe apertures of the strip.

In testimony that I claim the foregoing I have hereunto set my hand atPlainfield in the county of Waushara and State of Wisconsin in thepresence of two witnesses.

GIFFORD L. SHEAD.

Witnesses e W. N. FinLns, L. W. CHAPMAN.

